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Title
The Effect of Processing Additives on Energetic Disorder in Highly Efficient Organic Photovoltaics: A Case Study on PBDTTT-C-T:PC71BM
Article in journal
Authors
Feng Gao, Scott Himmelberger, Mattias Andersson, David Hanifi, Yuxin Xia, Shaoqing Zhang, Jianpu Wang, Jianhui Hou, Alberto Salleo, Olle Inganäs
Publication Year
2015
Source
Advanced Materials, 2015, (27)26, 3868-3873
Link to Source (DOI)
10.1002/adma.201405913
Abstract
<p>Energetic disorder, an important parameter affecting the performance of organic photovoltaics, is significantly decreased upon the addition of processing additives in a highly efficient benzodithiophene-based copolymer blend (PBDTTT-C-T:PC71BM). Wide-angle and small-angle X-ray scattering measurements suggest that the origin of this reduced energetic disorder is due to increased aggregation and a larger average fullerene domain size together with purer phases.</p>